JavaScript(JS) setTimeout()

The setTimeout() function is a built-in JavaScript function that allows you to execute a specified function after a specified amount of time has passed. It is commonly used to create delays or to schedule the execution of a function in the future.

The basic syntax of the setTimeout() function is as follows:

setTimeout(function, delay, arg1, arg2, ...);

where:

• function: the function to be executed after the delay
• delay: the delay time in milliseconds before executing the function
• arg1, arg2, etc.: optional arguments to be passed to the function when it is executed

Here is an example that demonstrates the use of the setTimeout() function:

function showMessage() {
  console.log("Hello, world!");
}

setTimeout(showMessage, 1000);

In this example, the showMessage() function is executed after a delay of 1000 milliseconds (1 second) by passing it as the first argument to the setTimeout() function.

You can also pass arguments to the function that will be executed by setTimeout():

function showMessage(message) {
  console.log(message);
}

setTimeout(showMessage, 1000, "Hello, world!");

In this example, the showMessage() function is executed after a delay of 1000 milliseconds with the argument "Hello, world!".

Note that the setTimeout() function does not pause the execution of the rest of your code. It simply schedules the function to be executed after the specified delay. If you need to execute a function repeatedly, you can use the setInterval() function instead, which works in a similar way but repeats the function at a specified interval.